Add Raxda ZERO 3 support

Author: burberius

src/adafruit_blinka/board/radxa/radxazero3.py

@@ -0,0 +1,65 @@
+# SPDX-FileCopyrightText: 2024 Burberius
+#
+# SPDX-License-Identifier: MIT
+"""Pin definitions for the Radxa ZERO 3 (3E and 3W)"""
+
+from adafruit_blinka.microcontroller.rockchip.rk3566 import pin
+
+# ZERO 3 IO pins
+
+D1_A0 = pin.GPIO1_A0
+D1_A1 = pin.GPIO1_A1
+D3_C4 = pin.GPIO3_C4
+D3_A1 = pin.GPIO3_A1
+D3_A2 = pin.GPIO3_A2
+D3_B0 = pin.GPIO3_B0
+D4_C3 = pin.GPIO4_C3
+D4_C5 = pin.GPIO4_C5
+D4_C2 = pin.GPIO4_C2
+D4_B2 = pin.GPIO4_B2
+D3_B3 = pin.GPIO3_B3
+D3_B4 = pin.GPIO3_B4
+D3_C3 = pin.GPIO3_C3
+D3_A4 = pin.GPIO3_A4
+D1_A4 = pin.GPIO1_A4
+D0_D1 = pin.GPIO0_D1
+D0_D0 = pin.GPIO0_D0
+D3_A3 = pin.GPIO3_A3
+D3_B1 = pin.GPIO3_B1
+D3_B2 = pin.GPIO3_B2
+D3_C1 = pin.GPIO3_C1
+D4_C6 = pin.GPIO4_C6
+D4_B3 = pin.GPIO4_B3
+D3_C2 = pin.GPIO3_C2
+D3_A7 = pin.GPIO3_A7
+D3_A6 = pin.GPIO3_A6
+D3_A5 = pin.GPIO3_A5
+
+
+# I2C
+SDA = D1_A0
+SCL = D1_A1
+
+# SPI
+CE0 = D4_C6
+SCLK = D4_C2
+MOSI = D4_C3
+MISO = D4_C5
+
+# UART aliases
+UART_TX = D0_D1
+UART_RX = D0_D0
+UART2_TX = UART_TX
+UART2_RX = UART_RX
+UART3_TX = D1_A1
+UART3_RX = D1_A0
+UART4_TX = D3_B2
+UART4_RX = D3_B1
+UART5_TX = D3_C2
+UART5_RX = D3_C3
+UART9_TX = D4_C5
+UART9_RX = D4_C6
+TXD = D0_D1
+RXD = D0_D0
+TX = D0_D1
+RX = D0_D0

src/adafruit_blinka/microcontroller/rockchip/rk3566/pin.py

@@ -171,6 +171,7 @@
     (1, I2C1_SCL, I2C1_SDA),
     (2, I2C2_SCL_M0, I2C2_SDA_M0),
     (3, I2C3_SCL_M0, I2C3_SDA_M0),
+    (4, I2C4_SCL_M0, I2C4_SDA_M0),
     (5, I2C5_SCL_M0, I2C5_SDA_M0),
 ]
 

src/board.py

@@ -274,6 +274,9 @@
 elif board_id == ap_board.RADXA_ZERO:
     from adafruit_blinka.board.radxa.radxazero import *
 
+elif board_id == ap_board.RADXA_ZERO3:
+    from adafruit_blinka.board.radxa.radxazero3 import *
+
 elif board_id == ap_board.ROCK_PI_S:
     from adafruit_blinka.board.radxa.rockpis import *